<template>
<div class="app-container">
    <el-form label-width="120px">
        <el-form-item label="信息描述">
            <el-tag type="info">excel模板说明</el-tag>
            <el-tag>
                <i class="el-icon-download" />
                <a :href="'/static/01.xlsx'">点击下载模板</a>
            </el-tag>
        </el-form-item>

        <el-form-item label="选择Excel">
            <el-upload 
                ref="upload" 
                :auto-upload="false" 
                :on-success="fileUploadSuccess" 
                :on-error="fileUploadError" 
                :disabled="importBtnDisabled" 
                :limit="1" 
                :action="BASE_API+'/subject/addSubject'" 
                name="file" 
                accept="application/vnd.ms-excel">
                <el-button slot="trigger" size="small" type="warning">选取文件</el-button>
                <el-button 
                    :loading="loading" 
                    style="margin-left:10px" 
                    size="small" 
                    type="success" 
                    @click="submitUpload">上传到服务器</el-button>
            </el-upload>
        </el-form-item>
    </el-form>
</div>
</template>

<script>
export default {
    data() {
        return {
            BASE_API: process.env.BASE_API, //接口API地址
            //OSS_PATH: process.OSS_PATH, //阿里云OSS地址
            importBtnDisabled: false, //按钮是否禁用
            loading: false
        }
    },
    created() {},
    methods: {
        //点击按钮上传到接口
        submitUpload() {
            console.log("submitUpload")
            // this.importBtnDisabled = true
            this.loading = true
            //原生写法 js:document.getElementById("upload").submit()
            this.$refs.upload.submit()
        },
        fileUploadSuccess() {
            console.log("fileUploadSuccess")
            this.loading = false
            this.$message({
                type: 'success',
                message: '添加技术分类成功'
            })
            //跳转到技术分类列表
            //路由跳转
            this.$router.push({path:'/subject/list'})
        },
        fileUploadError() {
            console.log("fileUploadError")
            this.loading = false
            this.$message({
                type: 'error',
                message: '添加技术分类失败'
            })
        }
    }
}
</script>
